According to OSHA 29 CFR 1926.451(f)(3), what is the maximum gap allowed between scaffold planks?
Correct Answer
A) 1 inch
OSHA allows a maximum gap of 1 inch between scaffold planks to prevent tools or materials from falling through while maintaining structural integrity of the platform.
Why This Is the Correct Answer
OSHA 29 CFR 1926.451(f)(3) specifically states that the maximum gap between scaffold planks cannot exceed 1 inch. This regulation balances safety with practicality, ensuring that small tools and materials cannot fall through the gaps while allowing for normal thermal expansion and construction tolerances. The 1-inch maximum is a critical safety standard that prevents objects from dropping and potentially injuring workers below. This requirement applies to all scaffold platforms and is strictly enforced during OSHA inspections.
Why the Other Options Are Wrong
Option B: 1/2 inch
3 inches would create dangerously large gaps that could allow significant tools and materials to fall through, and could even pose a foot entrapment hazard for workers on the platform.
Option D: 3 inches
1/2 inch is unnecessarily restrictive and would make scaffold installation extremely difficult due to normal construction tolerances and thermal expansion of materials.
Memory Technique
Think 'ONE inch for safety' - it's the perfect balance between too tight (1/2 inch) and too loose (2+ inches) for scaffold planks.
Reference Hint
OSHA Construction Standards 29 CFR 1926 Subpart L - Scaffolds, specifically section 1926.451(f)(3) regarding platform construction requirements
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